VLSI implementation of the list sphere algorithm

M. Wenk; A. Burg; M. Zellweger; C. Studer; W. Fichtner

doi:10.1109/NORCHP.2006.329255

VLSI implementation of the list sphere algorithm

M. Wenk^*, A. Burg, M. Zellweger, C. Studer, W. Fichtner

^*Corresponding author for this work

Swiss Federal Institute of Technology Zurich

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

8 Citations (Scopus)

Abstract

Sphere decoding (SD) is widely considered as one of the most promising detection schemes for multiple-input multiple-output (MIMO) communication systems. The recently proposed list sphere-decoding (LSD) algorithm is an extension of the original SD algorithm that improves the error rate performance of wireless communication systems considerably by providing soft-outputs instead of binary decisions. This paper addresses the VLSI implementation of the LSD algorithm. To this end, algorithm optimizations suitable for efficient hardware implementations are developed. The implemented circuits achieve a gain of up to 3 dB in SNR compared to hard output SDs and a throughput of up to 272 Mbps at 20 dB SNR in a 0.25 μm technology for 4×4 MIMO systems with 16-QAM modulation.

Original language	English
Title of host publication	24th Norchip Conference, 2006
Publisher	IEEE Computer Society
Pages	107-110
Number of pages	4
ISBN (Print)	1424407729, 9781424407729
DOIs	https://doi.org/10.1109/NORCHP.2006.329255
Publication status	Published - 2006
Externally published	Yes
Event	24th Norchip Conference, 2006 - Linkoping, Sweden Duration: 20 Nov 2006 → 21 Nov 2006

Publication series

Name	24th Norchip Conference, 2006

Conference

Conference	24th Norchip Conference, 2006
Country/Territory	Sweden
City	Linkoping
Period	20/11/06 → 21/11/06

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10.1109/NORCHP.2006.329255

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@inproceedings{46bb2cc088064b80813175432b5cf1e9,

title = "VLSI implementation of the list sphere algorithm",

abstract = "Sphere decoding (SD) is widely considered as one of the most promising detection schemes for multiple-input multiple-output (MIMO) communication systems. The recently proposed list sphere-decoding (LSD) algorithm is an extension of the original SD algorithm that improves the error rate performance of wireless communication systems considerably by providing soft-outputs instead of binary decisions. This paper addresses the VLSI implementation of the LSD algorithm. To this end, algorithm optimizations suitable for efficient hardware implementations are developed. The implemented circuits achieve a gain of up to 3 dB in SNR compared to hard output SDs and a throughput of up to 272 Mbps at 20 dB SNR in a 0.25 μm technology for 4×4 MIMO systems with 16-QAM modulation.",

author = "M. Wenk and A. Burg and M. Zellweger and C. Studer and W. Fichtner",

year = "2006",

doi = "10.1109/NORCHP.2006.329255",

language = "English",

isbn = "1424407729",

series = "24th Norchip Conference, 2006",

publisher = "IEEE Computer Society",

pages = "107--110",

booktitle = "24th Norchip Conference, 2006",

address = "United States",

note = "24th Norchip Conference, 2006 ; Conference date: 20-11-2006 Through 21-11-2006",

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TY - GEN

T1 - VLSI implementation of the list sphere algorithm

AU - Wenk, M.

AU - Burg, A.

AU - Zellweger, M.

AU - Studer, C.

AU - Fichtner, W.

PY - 2006

Y1 - 2006

N2 - Sphere decoding (SD) is widely considered as one of the most promising detection schemes for multiple-input multiple-output (MIMO) communication systems. The recently proposed list sphere-decoding (LSD) algorithm is an extension of the original SD algorithm that improves the error rate performance of wireless communication systems considerably by providing soft-outputs instead of binary decisions. This paper addresses the VLSI implementation of the LSD algorithm. To this end, algorithm optimizations suitable for efficient hardware implementations are developed. The implemented circuits achieve a gain of up to 3 dB in SNR compared to hard output SDs and a throughput of up to 272 Mbps at 20 dB SNR in a 0.25 μm technology for 4×4 MIMO systems with 16-QAM modulation.

AB - Sphere decoding (SD) is widely considered as one of the most promising detection schemes for multiple-input multiple-output (MIMO) communication systems. The recently proposed list sphere-decoding (LSD) algorithm is an extension of the original SD algorithm that improves the error rate performance of wireless communication systems considerably by providing soft-outputs instead of binary decisions. This paper addresses the VLSI implementation of the LSD algorithm. To this end, algorithm optimizations suitable for efficient hardware implementations are developed. The implemented circuits achieve a gain of up to 3 dB in SNR compared to hard output SDs and a throughput of up to 272 Mbps at 20 dB SNR in a 0.25 μm technology for 4×4 MIMO systems with 16-QAM modulation.

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U2 - 10.1109/NORCHP.2006.329255

DO - 10.1109/NORCHP.2006.329255

M3 - Conference contribution

AN - SCOPUS:34547247069

SN - 1424407729

SN - 9781424407729

T3 - 24th Norchip Conference, 2006

SP - 107

EP - 110

BT - 24th Norchip Conference, 2006

PB - IEEE Computer Society

T2 - 24th Norchip Conference, 2006

Y2 - 20 November 2006 through 21 November 2006

ER -

VLSI implementation of the list sphere algorithm

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